Results 1 to 10 of about 116,905 (319)

THEGAIAINERTIAL REFERENCE FRAME AND THE TILTING OF THE MILKY WAY DISK [PDF]

open access: bronzeThe Astrophysical Journal, 2014
While the precise relationship between the Milky Way disk and the symmetry planes of the dark matter halo remains somewhat uncertain, a time-varying disk orientation with respect to an inertial reference frame seems probable. Hierarchical structure formation models predict that the dark matter halo is triaxial and tumbles with a characteristic rate of ~
Michael Perryman   +2 more
core   +4 more sources

Realization of an Inertial Reference Frame From Mark III VLBI [PDF]

open access: bronzeSymposium - International Astronomical Union, 1990
Over 350 000 dual frequency Mark III VLBI observations from several geodetic and astrometric observing programs have been used to realize an inertial reference frame through the positions of 325 compact extragalactic radio sources uniformly distributed over the sky with standard errors typically under 1 milliarcsecond (mas). Internal and external tests
Chao Ma
openalex   +2 more sources

Study of Solid-Fluid Interaction in Body-Fixed Non-Inertial Frame of Reference

open access: bronzeJournal of Fluid Science and Technology, 2006
Motion of solid object in fluid is studied in moving frame of reference. Navier-Stokes (N-S) equations in a non-inertial frame of reference is coupled with the equations of linear and angular momentums for the solid object. It is shown that the numerical
Shintaro TAKEUCHI   +2 more
doaj   +3 more sources

Validation of Inertial-Measurement-Unit-Based Ex Vivo Knee Kinematics during a Loaded Squat before and after Reference-Frame-Orientation Optimisation [PDF]

open access: goldSensors
Recently, inertial measurement units have been gaining popularity as a potential alternative to optical motion capture systems in the analysis of joint kinematics.
Svenja Sagasser   +7 more
doaj   +2 more sources

Online Handwriting Recognition Method with a Non-Inertial Reference Frame Based on the Measurement of Linear Accelerations and Differential Geometry: An Alternative to Quaternions [PDF]

open access: goldMicromachines
This work describes a mathematical model for handwriting devices without a specific reference surface (SRS). The research was carried out on two hypotheses: the first considers possible circular segments that could be made during execution for the ...
Griselda Stephany Abarca Jiménez   +5 more
doaj   +2 more sources

Rotational Reference Frame Control of DFIG-Based Wind Turbines for Inertial Frequency Response

open access: goldIEEE Access
The rapid increase of wind power penetration has threatened the frequency stability of regional power grids, and the loss of system inertia is viewed as the key issue to be solved.
Changjiang Sun   +4 more
doaj   +2 more sources

Entrainment of an inertial reference frame by an accelerated gravitating shell [PDF]

open access: green, 2000
For the example of an accelerated shell we show that omission of the energy-momentum tensor (EMT) of the body that causes the acceleration and the tensions due to this acceleration can lead to a paradoxical result; Namely, the entrainment of an inertial frame by the accelerated shell in the direction opposite to that of the acceleration.
L. I. Men’shikov   +2 more
openalex   +3 more sources

An Alternative Theory on the Spacetime of Non-inertial Reference Frame

open access: diamondApplied Physics Research, 2017
In present paper, we have proposed an alternative theory on the spacetime of non-inertial reference frame (NRF) which bases on the requirement of general completeness (RGC) and the principle of equality of all reference frames (PERF). The RGC is that the physical equations used to describe the dynamics of matter and/or fields should include the ...
Gordon Liu
openalex   +3 more sources

Rotating Newtonian Fluids in a Non-Inertial Frame of Reference

open access: diamondInternational Journal of Physics and Research, 2021
Aman Mehta et al. Aman Mehta et al.   +1 more
openalex   +2 more sources

Transformation of spatial coordinates and time in the transition from inertial reference frame to non-inertial

open access: bronzeТЕНДЕНЦИИ РАЗВИТИЯ НАУКИ И ОБРАЗОВАНИЯ, 2018
E. L. Vinogradov
openalex   +2 more sources

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